Theory and modelling of polarisation in astrophysics
Dates: 5-8 May 2014
Location: Vila Lanna, Prague, Czech Republic
Website: http://www.asu.cas.cz/~wg2prague/index.html
Description:
This was the first meeting of the Working Group 2 (WG2) of the COST Action MP 1104
The meeting aimed at in-depth discussions between researchers studying the complex physics of the interaction of radiation and matter in magnetised plasmas, the generation and transfer of polarized radiation, and those developing and implementing efficient numerical methods for making feasible realistic numerical simulations.
The following topics were discussed:
- Theories of spectral line polarisation
- Physical mechanisms that produce/modify polarised radiation
- Radiative transfer
- Self-consistent modeling of polarisation in astrophysical plasmas
- From the observed polarisation to the physical conditions
SOC:
Daphne Stam (SRON Netherlands Institute for Space Research, Netherlands)
LOC:
Jiri Stepan (Chair, AIAS, Czech Republic)
Session 1
Roberto Casini : A new formulation of spectral line polarization with partial frequency redistribution
Veronique Bommier: XTAT, a new multilevel-multiline polarized radiative transfer code with PRD
Egidio Landi Degl'Innocenti: Relaxation phenomena in hyperfine structure multiplets due to collisions with neutral perturbers
Session 2
Luca Belluzzi: A possible mechanism for understanding the enigmatic scattering polarization signals observed in the solar Ba II and Na I D1 lines
Sowmya Krishnamurthy: Paschen-Back effect in hyperfine structure states of an atom including the effects of partial frequency redistribution
Octavio Roncero: Depolarizing collisions of neutral and singly ionized alkaline earths with hydrogen atoms
Cristina Sanz Sanz: LS depolarizing transitions in A+H collisions: a diabatization approach
Thiem Hoang: Grain Alignment by Radiative Torques: Theory and Implications for Modeling Dust Polarization
Richard Ignace: Continuum Polarization in Circumstellar Media
Michal Dovčiak: Relativistic effects on polarization properties of radiation emitted in strong gravity
Session 3
Helene Frisch: The diffusion approximation for Rayleigh scattering
Juris Freimanis: Polarized radiative transfer equation in the most important curvilinear coordinate systems
Ghislain R. Franssens: Mueller matrices and their role in the Vectorial Radiative Transfer model
Frederic Marin: STOKES - A Monte Carlo radiative transfer code for polarization modeling
Marko Stalevski: Modeling AGN polarization with Monte Carlo radiative transfer code SKIRT
L. S. Anusha: Multi-dimensional radiative transfer for modeling the chromospheric polarized spectrum
Session 4
Jiří Štěpán: Multilevel 3D non-LTE modeling with the code PORTA
H. D. Supriya: Modeling of the center to limb variation of linear polarization in the spectrum of the Ca I 4227 A line
Javier Trujillo Bueno: Scattering Polarization in UV Lines for Probing the Chromosphere and Transition Region of the Sun
Tanausú del Pino Alemán: Multilevel Modeling of Scattering Line Polarization with the Weak Anisotropy Approximation
Session 5.1
María J. Martínez González: Anomalous Circular Polarization Profiles in the He I 1083.0 nm Multiplet from Solar Spicules
Ivan Milic: Effects of inhomogeneities and velocity fields on scattering polarization in solar prominences
Andrés Asensio Ramos: Learning from spectropolarimetric observations
Session 5.2
Oleg Kochukhov: Multi-line polarisation analysis of stellar spectra
Nicolas Fabas: A study of the atmospheric dynamics and magnetic fields in Mira stars through full-Stokes spectropolarimetry
Nataliia Shchukina: Continuum polarization of stars as a result of occultation by transiting exoplanets
Session 5.3
Luka C. Popovic: Estimation of AGN super-massive black hole masses using spectro-polarometric observations
Lachezar Filipov: Polarization radiation from the accretion disk and proto-planetary formation mechanisms and application diagnostics processes in them
Sergio Fabiani: Future prospects for solar flare X-ray polarimetric missions
Sebastian Kiehlmann: Discriminating stochastic from deterministic EVPA swing mechanisms in AGN jets
Ioannis Myserlis: Multi-frequency linear and circular radio polarization
- Dr. Andres Asensio Ramos
- Mr. Ivan Milic
- Dr. Marko Stalevski
- Mr. Ioannis Myserlis
- Dr. Octavio Roncero
- Dr. Veronique Bommier
- Dr. Ghislain Franssens
- Mr. Ernest Alsina
- Mr. Tanausu del Pino Alemán
- Dr. Sergio Fabiani
- Dr. Cristina Sanz Sanz
- Prof. Nataliia Shchukina
- Prof. Luka Popovic
- Dr. Oleg Kochukhov
- Prof. Javier Trujillo Bueno
- Dr. Juris Freimanis
- Dr. Lachezar Filipov
- Dr. Roberto Casini
- Mrs. Supriya Dayananda
- Prof. Jan Stenflo
- Dr. Anusha Bhasari
- Dr. Frederic Marin
- Mr. Adam Tichy
- Dr. Jiri Stepan
- Dr. Michal Dovčiak
- Mr. Sebastian Kiehlmann
- Dr. Luca Belluzzi
- Mrs. Sowmya Krishnamurthy
- Dr. Thiem Hoang
- Prof. Richard Ignace
- Dr. Helene Frisch
- Dr. Jan Jurčák
- Prof. Petr Heinzel
- Dr. Stanislav Gunár
- Dr. Hervé Lamy